Operation failed due to geometric condition

This error is really driving me nuts, sketches are good, all cuts and extrudes cover each other etc. Any suggestions on why this is happening?

3 Answer

Could be alot of things, can you upload the part?

Possibly an end condition problem, if everything else is good, but more detail and what Adam said, upload a part.

I'm having the same problem: here's my file. i'm trying to revolve the rim drawn around the hub and spokes